BarcodeImage

BarcodeImage["string"] generates a barcode image of "string" in the "QR" format.

BarcodeImage["string",format] generates a barcode image of "string" in the specified format.

BarcodeImage["string",format,size] attempts to generate a barcode image of the specified size.

Examples

Generate a QR code:

BarcodeImage["Hello World"]

Generate a barcode in a specific format:

BarcodeImage["12345", "EAN13"]

Specify size:

BarcodeImage["Test", "QR", 200]

Please visit the official Wolfram Language Reference for more details.